Multiple Choice
A botanist performs a series of experiments in which different possible sources of oxygen to be used by plants are radioactively labeled.When photosynthetically derived compounds are examined, their oxygen will be found to have come from which source?
A) The atmosphere only
B) Soil minerals only
C) Water
D) Both the atmosphere and soil
E) Fertilizer
Correct Answer:
Verified
Correct Answer:
Verified
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